...is on when charging? my old laptop psu that my dog had chewed on finally died and rather than buying a $100 new one i got the diablotek universal adapter one for like $50 and put the tip that was supposed to be compatable with my laptop. my first question is about the "compatable tip" it is much shorter than the tip on the adapter that it is replacing and falls out all the time, I dont know if not going in as far as the other one is ok or not. My second question is when the computer is charging when off or in sleep mode the wattage stays at 19 but when I try to keep it plugged in when i use it the wattage drops from 19 to 14 or 15 and the psu starts buzzing, what does this mean? Is it ok to keep it plugged in when its on? Is there any way i can make the tip stay in better?